how rare is an 1976 duster 360 sunroof car !

Nice. IMO, rarity and desirability/value can often be exclusive of each other.

But in your case, a 76 Duster (which was a low production year IIRC) with the largest motor avail (360 yet), duals, SUNROOF, and special interior would easily make it the most desirable of the 76 Dusters.

Might not trade even-up with a hemicuda, but any orig 340/360 A-body has higher desirability/value. I like it.

Grant